Hair curling iron



FIG. 1 is a left side elevational view of a hair curling iron showing our new design in compact condition;

FIG. 2 is a top plan view;

FIG. 3 is a bottom plan view;

FIG. 4 is a rear end view; and

FIG. 5 is a front end view. 

The ornamental design for a hair curling iron, as shown and described. 